File	Doc	Category	Size	Date	Package
HASingletonElectionPolicy.java	API Doc	JBoss 4.2.1	1746	Fri Jul 13 20:52:36 BST 2007	org.jboss.ha.singleton

HASingletonElectionPolicy

Fields Summary

Constructors Summary

Methods Summary
public org.jboss.ha.framework.interfaces.HAPartition	getHAPartition()
public java.lang.Object	getManagedSingleton()
public boolean	isElectedMaster() Conducts an election and returns whether the managed service is the master, based on the current view of partition. return true only if the managed service is the master
public boolean	isElectedMaster(org.jboss.ha.framework.interfaces.HAPartition partition) Given the HAPartition, return whether the managed service is the master. param partition return true only if the managed service is the master
public org.jboss.ha.framework.interfaces.ClusterNode	pickSingleton() Return the elected master node. return the master node
public org.jboss.ha.framework.interfaces.ClusterNode	pickSingleton(org.jboss.ha.framework.interfaces.HAPartition partition) Given the HAPartition, return the elected master node. param partition return the master node
public void	setHAPartition(org.jboss.ha.framework.interfaces.HAPartition partition) Sets the HAPartition; from this the election policy can gain access to the DistributedReplicantManager for tracking the deployment topology for the singleton service and to the HAPartition for making group RPC calls.
public void	setManagedSingleton(java.lang.Object singleton) Called by the HASingleton to provide the election policy a reference to itself. A policy that was designed to elect a particular kind of singleton could downcast this object to a particular type and then access the singleton for state information needed for the election decision.